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Cine_Photo_23
New Contributor

Dilution of Peroxide

Hello

So let me explain my situation. I'm a practicing photo developer and have recently been introduced to a new way of reversing film from a negative to a positive. We call it "reversal bleach" or "reversal processing". The solution calls for 9% Hydrogen Peroxide and 99% Acetic Acid. However, I was unable to find any 9% Peroxide in the US and businesses in the UK could not legally ship to me.

So I bought about 32 oz. of 12% Peroxide. Would anyone know how I would be able to go about diluting it down to a 9% solution? 

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2 Replies
dorisilewis
New Contributor II

Re: Dilution of Peroxide

As a retired chem prof I needed to step in and help you! This is a dilution problem:

 

 

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dorisilewis
New Contributor II

Re: Dilution of Peroxide

Here is an attempt to have the pdf reply in the proper orientation!
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